Multi-component material chemical reaction auxiliary device

Abstract

The utility model discloses an auxiliary device for chemical reaction of multi-component materials. The multi-component material chemical reaction auxiliary device comprises: a reaction container having a sealable reaction chamber; the reaction gas input mechanism is communicated with the reaction chamber and is used for inputting reaction gas into the reaction chamber; the material bearing mechanism is arranged in the reaction chamber and is provided with a first surface and a second surface which are back to back, the first surface is at least used for bearing a multi-component material, the material bearing mechanism is provided with a plurality of air holes through which the reaction gas can penetrate, and the air holes penetrate from the first surface to the second surface; and the tail gas emission mechanism is communicated with the reaction chamber and is used for outputting tail gas generated in the reaction chamber to the outside. According to the chemical reaction auxiliary device for the multi-component materials provided by the embodiment of the utility model, various chemical reactions can be carried out in one reaction device, the reaction speed is higher, the reaction is more thorough, and the conversion of a large batch of materials can be realized, so that the reaction and analysis efficiency is improved.

Description

Technical Field

[0001] The utility model particularly relates to a multi-component material chemical reaction auxiliary device, belonging to the technical field of material quantitative analysis. Background Art

[0002] In the fields of chemistry, materials, environmental protection, etc., for the purpose of quantitative detection of specific elements in multi-component materials or preparation of specific products using multi-component materials, multiple components in multi-component materials are usually converted into the same substance, or specific elements in multi-component raw materials are converted into the same form, such as the same ion. However, due to the different chemical properties of these components, it is often difficult to achieve the above purpose through one chemical reaction.

[0003] Taking the determination of gallium content in the semiconductor field as an example, in the production process of materials such as metal gallium (Ga), gallium nitride (GaN), gallium oxide (Ga2O3), gallium arsenide (GaAs) and gallium chloride (GaCl3), a large amount of gallium-containing materials will be produced in each link, and these materials contain a certain amount of gallium. In order to optimize the production process, reduce production costs, and for the subsequent treatment of these materials, it is necessary to accurately and quickly determine the gallium content in these materials.

[0004] The existing methods for determining the gallium content in gallium-containing materials are mainly spectral mass spectrometry detection methods, including atomic absorption spectroscopy (AAS), inductively coupled plasma emission spectroscopy (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS). These detection methods can only have relatively accurate detection results when the gallium material in the gallium-containing material is relatively simple and the concentration is low. For example, ICP-OES detection requires acid dissolution of the sample mixture to obtain ionic gallium before detection. However, when the material contains a variety of gallium-containing substances, how to effectively convert these substances into a unified detectable component is a difficult problem faced by the industry. For components such as metallic gallium, gallium oxide and gallium chloride, it is easy to convert them into ionic gallium through acid and alkali dissolution, but materials such as gallium nitride and gallium arsenide have high chemical stability and are difficult to convert through acid and alkali dissolution, which will seriously affect the accuracy of gallium content detection. In addition, ICP-OES and other detection methods are micro or trace detection, but for large quantities of gallium-containing materials in industry, it is difficult to keep the gallium content uniform when taking a small amount of samples. Therefore, the industry is in urgent need of a solution to effectively solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a multi-component material chemical reaction auxiliary device, thereby overcoming the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model includes:

[0007] The present invention provides a multi-component material chemical reaction auxiliary device, which includes:

[0008] A reaction vessel having a sealable reaction chamber;

[0009] A reaction gas input mechanism, connected to the reaction chamber, for inputting reaction gas into the reaction chamber;

[0010] A material carrying mechanism is disposed in the reaction chamber and has a first surface and a second surface facing each other, the first surface is at least used to carry a multi-component material, and the material carrying mechanism has a plurality of air holes for the reaction gas to pass through, the air holes extending from the first surface to the second surface;

[0011] The tail gas discharge mechanism is communicated with the reaction chamber and is used for outputting the tail gas generated in the reaction chamber to the outside.

[0012] Furthermore, the material carrying mechanism comprises a plate-like structure having a plurality of the air holes.

[0013] Furthermore, the plate-like structure includes a supporting plate body and a porous layer stacked on the supporting plate body, and a plurality of through holes arranged on the supporting plate body are connected to the porous structure in the porous layer to form a plurality of air-permeable holes, wherein the porous structure includes a plurality of large numbers of staggered micro-nano-scale holes, and the through holes are macroscopic large-sized holes with regular shapes.

[0014] Furthermore, the porous layer includes graphite felt or carbon felt.

[0015] Furthermore, the support plate should be selected so as not to react with any one or more of the reaction materials and reaction gases it carries at a set reaction temperature. Exemplarily, the support plate includes a quartz plate or the like.

[0016] In a more specific embodiment, the multi-component material chemical reaction auxiliary device also includes a support structure and a base plate, the plate-like structure is connected to the base plate through the support structure, the plate-like structure and the base plate are combined to form a closed air intake chamber, and the reaction gas input mechanism is connected to the air intake chamber.

[0017] Furthermore, the reaction gas input mechanism includes a reaction gas inlet pipeline, a selected pipe section of the reaction gas inlet pipeline is arranged in the inlet chamber, and a plurality of outlet holes are arranged on the selected pipe section along the length direction, and the outlet holes are connected to the inlet chamber.

[0018] Furthermore, the selected pipe segment and the second surface are both arranged in a horizontal direction, and the gas output direction of the gas outlet holes on the selected pipe segment is toward the second surface.

[0019] Furthermore, the reaction container includes a reaction container having a tubular structure.

[0020] In a more specific embodiment, the multi-component material chemical reaction auxiliary device also includes a temperature regulating mechanism, which is arranged outside or inside the reaction container and is at least used to regulate the temperature in the reaction chamber.

[0021] Compared with the prior art, the utility model has at least the following advantages:

[0022] The embodiment of the utility model provides a multi-component material chemical reaction auxiliary device, which can carry out multiple chemical reactions in one reaction device, and the reaction speed is faster and the reaction is more thorough, and the reaction and conversion of large quantities of materials can be realized, thereby improving the analysis efficiency and reaction efficiency. In addition, the embodiment of the utility model provides a multi-component material chemical reaction auxiliary device, which has a simple device structure, low cost on the one hand, reducing the detection and analysis cost, and high reaction efficiency on the other hand, making the detection and analysis results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of a multi-component material chemical reaction auxiliary device provided in Example 1 of the utility model;

[0025] Figure 2 It is a side view of a multi-component material chemical reaction auxiliary device provided in Example 1 of the utility model;

[0026] Figure 3 yes Figure 2 The cross-section formed along AA in the middle;

[0027] Figure 4 This is a schematic diagram of the overall structure of a multi-component material chemical reaction auxiliary device provided in Example 2 of the present utility model;

[0028] Figure 5 It is a side view of a multi-component material chemical reaction auxiliary device provided in Example 2 of the utility model;

[0029] Figure 6 yes Figure 5 The cross-section formed along AA in the figure. DETAILED DESCRIPTION

[0030] In view of the deficiencies in the prior art, the inventor of this case has proposed the technical solution of the utility model after long-term research and extensive practice. The technical solution, its implementation process and principle will be further explained as follows.

[0031] Most of the methods for determining gallium content in the prior art are aimed at the gallium element in the process of natural mineral extraction, mainly in the process of aluminum ore extraction, vanadium extraction, and yellow phosphorus electric dust ash smelting materials or in tailings. The gallium elements in these materials are mostly in the form of metal oxides or trace gallium ions, which are relatively easy to be dissolved by acid and alkali. Therefore, the gallium elements in these materials can be converted into gallium ions by general acid dissolution or alkali dissolution, and then can be detected by spectral mass spectrometry. These determination methods can usually only perform trace detection or purity detection on a single component, have high requirements for gallium-containing materials, have a small amount of detection, and a long time period. However, for actual industrial production, the gallium-containing materials produced in each link have the characteristics of complex composition, high gallium mass ratio, and multiple types of gallium-containing substances. For example, the gallium-containing materials currently produced in industrial production may contain substances such as metallic gallium, gallium oxide, and gallium chloride, as well as very stable substances such as GaN and GaAs, and other substances that do not contain gallium. Substances such as GaN and GaAs are not easily dissolved by ordinary acids and alkalis, which results in the existing gallium content determination methods being unable to adapt to the effective detection of gallium content in multiple application scenarios and multi-substance mixed materials, and are particularly difficult to apply to the effective detection of gallium content in materials with complex components and high gallium content.

[0032] In view of this, the present invention proposes a multi-component material chemical reaction auxiliary device, which can assist in realizing the simple, fast, low-cost and accurate determination of the gallium content in materials with complex components and high gallium content in multiple scenarios, thereby meeting the needs of actual production.

[0033] The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The experimental methods used in the following examples are all conventional methods unless otherwise specified. The following examples have processes that are not described in detail, which can be implemented or understood by those skilled in the art with reference to the prior art.

[0034] Example 1

[0035] See also Figure 1 , Figure 2 and Figure 3A multi-component material chemical reaction auxiliary device includes a reaction container 1, a material carrying mechanism 2, a reaction gas input mechanism 3 and an exhaust gas discharge mechanism 4. The reaction container 1 has a sealable reaction chamber 101 inside, the material carrying mechanism 2 is arranged in the reaction chamber 101, the material carrying mechanism 2 is used to carry the multi-component material, and the material carrying mechanism 2 has a plurality of air holes for the reaction gas to pass through, the reaction gas input mechanism 3 and the exhaust gas discharge mechanism 4 are respectively connected to the reaction chamber 101, the reaction gas input mechanism 3 is used to input the reaction gas into the reaction chamber 101, and the exhaust gas discharge mechanism 4 is used to output the exhaust gas generated in the reaction chamber 101 to the outside.

[0036] In this embodiment, the reaction container 1 can be a cylindrical container with a tubular structure. In the working state, the reaction container 1 and the material supporting mechanism 2 are both arranged horizontally, and the supporting table of the material supporting mechanism 2 for carrying the multi-component material (i.e., the reaction material) is also horizontal; the reaction gas input mechanism 3 and the exhaust gas discharge mechanism 4 are relatively arranged on both sides of the material supporting mechanism 2. Specifically, the reaction gas input mechanism 3 is arranged below the material supporting mechanism 2 in the vertical direction, and the exhaust gas discharge mechanism 4 is arranged above the material supporting mechanism 2 in the vertical direction. The reaction gas can be input into the reaction chamber 101 of the reaction container 1 through the reaction gas input mechanism 3, so that the reaction gas can fully contact and react with the multi-component material retained above the material supporting mechanism 2 or the mixture formed by the reaction of the multi-component materials, and the exhaust gas generated by the reaction (including unreacted reaction gas) can be discharged to the outside through the exhaust gas discharge mechanism 4.

[0037] In this embodiment, the material carrying mechanism 2 includes a plate-like structure with a plurality of air holes, the plate-like structure is connected to the bottom plate 6 through the support structure 5, and the bottom plate 6 is fixedly connected to the reaction container 1. Specifically, in order to improve the utilization rate of the reaction gas, the plate-like structure is also enclosed with the bottom plate 6 to form an air inlet chamber 102, the air inlet chamber 102 is connected to the reaction chamber 101 through the plurality of air holes on the plate-like structure, and the reaction gas input mechanism 3 is connected to the air inlet chamber 102. Specifically, the plate-like structure with a plurality of air holes has a first surface and a second surface facing each other, the air holes penetrate from the first surface to the second surface, the first surface faces the reaction chamber 101 (that is, directly exposed in the reaction chamber 101), the surface has a large number of micrometer-level staggered micropores, which do not affect the material bearing, but can allow the gas to smoothly penetrate the material and the surface structure, and the second surface faces the air inlet chamber 102 (that is, directly exposed in the air inlet chamber 102).

[0038] In this embodiment, the reaction gas input mechanism 3 includes a reaction gas inlet pipeline, a selected pipe section of the reaction gas inlet pipeline is arranged in the reaction chamber 101, and a plurality of gas outlets are arranged on the selected pipe section along the length direction, and the gas outlets are connected to the gas inlet chamber. Specifically, the selected pipe section and the second surface and the first surface (carrying table) of the material bearing mechanism 2 are arranged in the horizontal direction, and the gas output direction of the gas outlet on the selected pipe section is toward the second surface of the material bearing mechanism 2. Through such a design, the reaction gas can be more uniformly and quickly contacted and reacted with the multi-component reaction material on the material bearing mechanism 2, thereby improving the reaction efficiency and making the reaction more sufficient. Among them, the reaction gas can be hydrogen chloride, oxygen, nitrogen and hydrogen, etc., and the multi-component material can be a variety of gallium-containing materials. The reaction gas can contact and react with the multi-component material from any direction around the multi-component material, so that the multi-component material can be completely converted into gallium chloride, thereby avoiding the problem of inaccurate detection results caused by part of the gallium in the gallium-containing material not being converted into soluble substances.

[0039] In this embodiment, the exhaust gas emission mechanism 4 includes an exhaust gas emission pipeline, and a selected pipe section of the exhaust gas emission pipeline is arranged in the reaction chamber 101 and communicates with the reaction chamber 101. Figure 3 The solid arrows in the figure represent the direction of gas flow, and the dotted arrows represent the direction of exhaust gas emission.

[0040] In this embodiment, the plate structure includes a support plate body and a porous layer stacked on the support plate body, and a plurality of through holes provided on the support plate body are connected with the porous structure in the porous layer to form a plurality of air holes. Specifically, the porous layer includes graphite felt or carbon felt, and the selection of the support plate body needs to meet the requirement of not reacting with any one or more of the reaction materials and reaction gases carried by it at a set reaction temperature. Exemplarily, the support plate body includes a quartz plate, etc.

[0041] Example 2

[0042] See also Figure 4 , Figure 5 and Figure 6 The structure of a multi-component material chemical reaction auxiliary device in this embodiment is basically the same as that in Example 1, except that: the multi-component material chemical reaction auxiliary device in this embodiment further includes a temperature regulating mechanism 7, which is arranged outside or inside the reaction vessel 1 and is at least used to regulate the temperature in the reaction chamber 101. Specifically, the temperature regulating mechanism 7 may include an electric heating component, a temperature monitoring component, a cooling component, etc. The electric heating component, the temperature monitoring component, and the cooling component may all adopt functional components known to those skilled in the art, which may all be commercially available, and their specific structures and product models are not limited here.

[0043] In a typical example, the multi-component material chemical reaction auxiliary device in Example 1 and Example 2 can be used to assist in the determination of the gallium content in the gallium-containing material. The specific determination method includes the following steps:

[0044] S 1. Grind the gallium-containing material. Grind the gallium-containing material to make it into fine particles smaller than 200-500 mesh and mix them evenly. In industrial production, the gallium-containing material is large in quantity and quality, and the gallium-containing material obtained by different equipment according to different production processes is unevenly distributed. If the existing gallium content determination method is used for local small amount (0.01-10g) sampling, it is easy to cause the obtained test results to be quite different from the actual gallium content of the material. The large amount of sampling and crushing operation of the utility model can well avoid the above-mentioned defects of the prior art.

[0045] S2. Perform alkali melting and acid dissolution treatment on the gallium-containing material. The crushed gallium-containing material is first added to an alkaline substance 5-8 times its mass, placed on the first surface (i.e., the material carrying table) of the material carrying mechanism 2 located in the closed reaction container 1, and heated to 850-1000°C at a heating rate of 1-10°C / min for melting reaction. The reaction time is 2-12h, wherein the specific reaction temperature and time can vary according to the chemical composition and mass of the gallium-containing material. Subsequently, hydrogen chloride gas is introduced into the reaction chamber through the reaction gas input mechanism 3 as a reaction gas, with a flow rate of 0.3-1m / s, and the reaction time is 4-12h. The tail gas generated by the reaction is discharged through the tail gas discharge mechanism 4, and waits to cool to room temperature, and the sample is added to hot water at a temperature of 40-80°C, and acid is added thereto (the mass ratio of acid to hot water can be about 1:1), stirred, and fully dissolved, and then allowed to stand.

[0046] Since the amount of gallium-containing material is large, it is not easy to fully react using a crucible container, etc., and therefore a special quartz sieve plate is selected to evenly and finely spread the mixture of gallium-containing material and alkaline substance on the material supporting table of the porous material supporting mechanism 2. The porous structure of the material supporting mechanism 2 can enable the subsequent hydrogen chloride gas to fully contact with the gallium-containing material, and most of the gallium-containing substances in the gallium-containing material can be converted into gallate and gallium oxide through melting reaction with the alkaline substance, while the remaining unreactive substances are then reacted and neutralized with hydrogen chloride gas, and the obtained gallate and gallium oxide are converted into gallium chloride at the same time. After being fully dissolved in hot water and acid, all gallium elements can be converted into gallium ions.

[0047] S3, filtering and sampling the mixed solution finally obtained in step S2. At least the solids in the sample dissolved in step S2 are removed by filtering, centrifuging, etc., so as to obtain a sample solution to be tested, which is used for subsequent gallium content determination. Since the sample solution to be tested has the unique uniformity of the solution, the problem of a large difference between the test result and the actual concentration caused by the existing solid local sampling method can be effectively avoided.

[0048] S4. Determine the gallium content in the test sample by rhodamine B spectrophotometry. In fact, there are many ways to determine the gallium content. Here, the rhodamine B spectrophotometry method, which is simple to operate, has low requirements on operators and equipment, and is low in cost, is used as an example. This determination method can be implemented in a manner known in the art.

[0049] The embodiment of the utility model provides a multi-component material chemical reaction auxiliary device, which can be used to pre-treat a material mixed with multiple gallium-containing substances (including but not limited to gallium-containing materials, other treatments / operations / processes requiring heating and melting reactions or requiring chlorination gas reactions, which can be achieved in the device) to obtain a material with a relatively single component, which is convenient for subsequent determination of gallium content or other processing.

[0050] The multi-component material chemical reaction auxiliary device provided by the embodiment of the utility model can effectively meet the demand for large-scale processing of gallium-containing materials in industrial production; and compared with structures such as crucibles, its special sieve plate design not only greatly increases the contact area of ​​the material, so that each part is heated and reacted evenly, but also allows gases such as hydrogen chloride to fully contact and react with the material, greatly improving the efficiency and yield of material processing. Compared with the traditional acid-solution and alkali-solution methods, the multi-component material chemical reaction auxiliary device provided by the embodiment of the utility model can more quickly convert a large amount of material into the required single-component material, and the conversion efficiency is higher.

[0051] It should be understood that the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-component material chemical reaction auxiliary device, characterized in that: include: A reaction vessel having a sealable reaction chamber; A reaction gas input mechanism, connected to the reaction chamber, for inputting reaction gas into the reaction chamber; A material carrying mechanism is disposed in the reaction chamber and has a first surface and a second surface facing each other, the first surface is at least used to carry a multi-component material, and the material carrying mechanism has a plurality of air holes for the reaction gas to pass through, the air holes extending from the first surface to the second surface; The tail gas discharge mechanism is communicated with the reaction chamber and is used for outputting the tail gas generated in the reaction chamber to the outside.

2. The multi-component material chemical reaction auxiliary device according to claim 1, characterized in that: The material carrying mechanism comprises a plate-shaped structure having a plurality of air holes.

3. The multi-component material chemical reaction auxiliary device according to claim 2, characterized in that: The plate-like structure includes a supporting plate body and a porous layer stacked on the supporting plate body. A plurality of through holes arranged on the supporting plate body are connected with the porous structure in the porous layer to form a plurality of air holes.

4. The multi-component material chemical reaction auxiliary device according to claim 3, characterized in that: The porous layer includes graphite felt or carbon felt.

5. The multi-component material chemical reaction auxiliary device according to claim 3, characterized in that: The supporting plate body includes a quartz plate.

6. The multi-component material chemical reaction auxiliary device according to any one of claims 2 to 5, characterized in that: Also includes: A support structure and a bottom plate, wherein the plate-like structure is connected to the bottom plate via the support structure, the plate-like structure and the bottom plate enclose a closed air intake chamber, and the reaction gas input mechanism is in communication with the air intake chamber.

7. The multi-component material chemical reaction auxiliary device according to claim 6, characterized in that: The reaction gas input mechanism comprises a reaction gas inlet pipeline, a selected pipe section of the reaction gas inlet pipeline is arranged in the inlet chamber, and a plurality of outlet holes are arranged on the selected pipe section along the length direction, and the outlet holes are communicated with the inlet chamber.

8. The multi-component material chemical reaction auxiliary device according to claim 7, characterized in that: The selected pipe section and the second surface are both arranged in a horizontal direction, and the gas output direction of the gas outlet holes on the selected pipe section is toward the second surface.

9. The multi-component material chemical reaction auxiliary device according to claim 1, characterized in that: The reaction container includes a reaction container having a tubular structure.

10. The multi-component material chemical reaction auxiliary device according to claim 1, characterized in that: The multi-component material chemical reaction auxiliary device also includes a temperature regulating mechanism, which is arranged outside or inside the reaction container and is at least used to regulate the temperature in the reaction chamber.

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